All-digital RF multi-band transmitters for advanced communications systems

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Advanced wireless communication systems need to have multi-standard multi-band capabilities to be more ubiquitous, mobile, agile and secure than they are today. This requires the development of software defined radio transceivers. So far, extensive research activities have been carried out to design the RP front-end of such multi-band tranceivers. This preliminary focused on the receiver design. Conversely, the transmitter side still a the early research and development stages. This research proposal aims at developing innovative all-digital RF multi-band transmitters for advanced communication systems using the latest semi-conductor devices technology. The targeted architecture is based on switching-mode RF power amplifiers that makes it possible to attain extremely high power efficiency levels.